README.md in markdown_exec-1.1.1 vs README.md in markdown_exec-1.2.0

@@ -201,9 +201,13 @@
 
 ``` :(report)
 echo "$TIME -> $ACTIVITY"
 ```
 
+``` :sleep
+sleep 10
+```
+
 # License
 
 The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).
 
 # Code of Conduct